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Operating Systems Solaris Basic question regarding root file system copy to another disk Post 302915691 by hicksd8 on Thursday 4th of September 2014 09:43:24 AM
Old 09-04-2014
So 'format' doesn't find the original disk that boots okay?

Perhaps that is not an error in this virtualised environment. I repeat, I do not know your 'simulator' environment.

However, in your post#1, you say that the newly created (virtual) disk is device c0t0d0s3. If it doesn't show in 'format', how did you know that?

It is likely that this platform has its own boot block(s) for booting so I would be careful writing boot blocks out. (Boot blocks reside in sectors 0 and 1 of the physical drive and, after execution, pass control to the partition it's booting from.

Also, if you are changing from booting from c0t0d0s0 to booting from c0t0d0s3 then the device nodes /dev/dsk/c0t0d0s3 and /dev/rdsk/c0t0d0s3 must exist on that filesystem before it can be booted from. ALSO, if /usr is a separate filesystem, the /etc/vfstab must tell Solaris where to find that. The nodes for that device must exist too. So (if /usr is not included on the root filesystem) it must be an available device for Solaris to boot. Other filesystems may fail to mount but the system will still boot.
 

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dev(7FS)							   File Systems 							  dev(7FS)

NAME
dev - Device name file system DESCRIPTION
The dev filesystem manages the name spaces of devices under the Solaris operating environment. The global zone's instance of the dev filesystem is mounted during boot on /dev. A subdirectory under /dev may have unique operational semantics. Most of the common device names under /dev are created automatically by devfsadm(1M). Others, such as /dev/pts, are dynamic and reflect the operational state of the system. You can manually generate device names for newly attached hardware by invoking devfsadm(1M) or implicitly, by indirectly causing a lookup or readdir operation in the filesystem to occur. For example, you can discover a disk that was attached when the system was powered down (and generate a name for that device) by invoking format(1M)). FILES
/dev Mount point for the /dev filesystem in the global zone. SEE ALSO
devfsadm(1M), format(1M), devfs(7FS) NOTES
The global /dev instance cannot be unmounted. SunOS 5.11 9 June 2006 dev(7FS)
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